claude-code - 💡(How to fix) Fix [BUG] parallel Bash calls get cancelled when grep returns exit code 1 [1 comments, 2 participants]

Error Messages/Logs

TL;DR

The issue can be fixed by modifying the grep command to return a zero exit code when no matches are found, or by adjusting the framework to handle grep's exit code 1 as a non-error condition.

Guidance

• Verify that the grep command is being used with the correct options to return a zero exit code when no matches are found, such as using grep -q instead of just grep.
• Check the framework's documentation to see if there is a way to configure it to ignore grep's exit code 1 as a non-error condition.
• Consider using a wrapper script around the grep command to handle the exit code and return a zero exit code when no matches are found.
• Review the changes made in the latest version of Claude Code to see if there is a specific commit or change that introduced this behavior.

Example

# Instead of using grep directly
grep "pattern" file.txt

# Use grep -q to return a zero exit code when no matches are found
if grep -q "pattern" file.txt; then
  # Handle match found
else
  # Handle no match found
fi

Notes

The issue seems to be specific to the interaction between the grep command and the framework, and the solution may depend on the specific requirements of the project. Further investigation into the framework's documentation and the changes made in the latest version of Claude Code may be necessary to find a complete solution.

Recommendation

Apply workaround: Modify the grep command to return a zero exit code when no matches are found, as this is a more straightforward solution that can be implemented immediately.